Well, after reading page 5 of this thread, I can see I will stay out of 'sub tech talk'. A guy could get hurt.
After weeks of theorizing about speaker choice, then ordering, waiting, getting and trying many Axioms... I am tired. I need a break to just be a listener/watcher of HT for a bit. When my batteries get recharged, I'' do the individual sub calibration that Randy and Jay outlined. Jay, From your comments, I will try unplugging the Servo 15 to see what the 2 KLH's are actually doing. I never thought of that. Thanks. Then I'll try with just the Servo15. After I do the individual sub calibration, I will repeat the above process, noting differences I hear (or don't ;o).
Thanks to all here for the great ideas. It will likely be a week (or maybe a few days ;o) before I get back into testing mode.
Cheers to all.